Counting and indicating device



Oct. 6, 1931. J. M. DAYTON COUNTING AND INDICATING DEVICE Filed Jan.

21, 1929 5 Sheets-Sheet Oct. 6, 1931.

J. M. DAYTON COUNTING AND INDICATING DEVICE Filed Jan. 21, 1929 5Sheets-Sheet 2 Oct; 6 1931. DAYTON 1,826,603

COUNTING AND INDICATING DEVICE Filed Jan. 21, 1929 5 Sheets-Sheet 3 Oct.6, 1931. J. M. DAYTON COUNTING ANb INDICATING DEVICE 5 Sheets-Sheet 4Filed Jan. 21. 1929 IIiI Jawnesfllpay fora,

0st. 6, 1931. M, DAYTON 1,826,603

COUNTING AND INDICATING DEVICE Filed Jan. 21, 1929 5 Sheets-Sheet 5 f atent ecl (jet. 6

l Inseam PATENT orrrce "JAMES it. narrow, or 'ronnme'ron, CONNECTICUTcountrrne anninnroarrno DEVICE A l icai-ion filed January 21,1929.Serial No. 334,634f

@This invention relates to improvements in counting and indicatingdevices, andmore particularly to such type of devices as may be appliedto dispensing apparatus. v

One of the objects or" the presentinvention is the provision of g acompensating mechanism by which the devicemay 'beattached to any oneofanumber of pumps having diliermg lengths or" stroke for the deliveryor a calibrated quantity, for the purpose of compensating for thisdiffering length of stroke.

rinother obj ectofthe presentinvention is the provision of a drivingsystemwhereby the movements in both directions of the pump to which thedevice is attachedmay'be totalized,

' I vthe particular connection for this purpose be- "ing characterizedby its Simplicity, and the small number of parts employed.

' A "further object of this invention is the provision of a driivlngsystem and the employment of a fast andfa slowfindicating hand,movements of the pump in both directions being totalize'd by respectivetrains, the

final elements of each train being coupled'together for movementin unson, with the provision of aClJLIIlCt trains-for driving respectivelythe slow and the fast-hands.

f Stillanother object ofthis invention is the provision ofa resettingmeans for portions of the countingand indicating device whereby suchportions may be reset to a predetermined minimum quantity ing asingleand quickoperat on and a single mampulatmn. f

' A still further object ofzthis invention is the provision. of meanswhereby the resetting accomplished by a disconnection of the driving.system leadingto such portions of the counting and indicating device.

Stillanother object of this invention is the provision oi. a resett ngmechanism for'parts :of the counting and indicating device whichnormally is without operation upon the system and is not prepared forsuch operation withthe inclusion ofnieans whereby a simple manipulationwill prime such resetting means ioroperation, -.while' retaining the mwdby. an abrupt release of the parts thereother parts in 1 their'normaPposition, folby reset so that they are quickly andfimme- Fig-l1,showing parts of diately returned to a predetermined position.

Still another object of this invention resides in theprovision of fastand slow hands for indicating the quantities dispensed, with separatedrivingtrains therefor, and an audible'alarm' which is actuated upon thecompletion of a predetermined angular movement of such indicating hand.

Other ob ects and features of this inventionwill appear in the course ofthe following specification and claims, taken in conunction with thedrawings which represent one illustrative form of the construction ofthe device embodying the present invention. In the accompanyingdrawings, the device is illustrated as contained within a casing adaptedto be mounted upon the enclosing and supporting standard of a gasolinedispenslng pump having a cylinder which usually is slightly difierent indiameter for dilferent pumps of a series, with areciprocating pistonmoving therein to suck and force the gasoline at each direction ofmovement.

' In the drawings:

Figure l is a conventional view showing the relationship of thedispensing pump with the counting and indicating device, showing f thelatter from'the rear with the usual supporting and containing caseremoved. Fig. 2 s a vlewon alarger scale but similar to the showingofthe rear'of the indieating and counting device of Fig. 1, with cerbutwithithe parts in a position occupied fol lowing a resetting operation.Fig. 7 1s a sim1lar section on line 7-7 '0 F ig. 11, showlng the rockarm which supports the slovvwhand, and parts ofithere 7settingpl'ungerin section.

ltially on line 8-8 of Fig. 7. v

'Fig. 9 is a viewsimilar to-that'of Fig. 7,'

- sta ntial ly on line 13%13 of Fig.6.

Accor Fig. 8 is a sectional view taken substan Fig 11 is a sectionalvievvftak'eii substantial 1y on line 11 11;o Fig. 6.

Fig.12 is a similar sectioiial view taken on '7 I the axis ofthe handstafl.

'Fig. 13 is adetail sectional vievv'taken'sub- Fig. 14 is adetail'viewtaken substantially ding; to this lnven tion, a reciprocat- V llinggpumpiis Connected by a variable'raek arm toithe'aetuat ns rieiqn oail hd a ea 1 counting jdevice,; with means to "establish a given p idftha gef. t nda jrflfi i adjustment of the e-effect of the rack uponthe pinion. This pinion is caused to operate gear I to move thecou'n'tingor total ployed, the slow hand will -move around Iijzingmechamsm itself, and to move a pair o f ha- '1ds atgdiiieringspeedratios. F or example, theindicating dial is graduated to indicategtvventy gallons, and a pumplhavi ng "a, capacity of one gallon, perstroke is em;

- by one complete revolutiou for each 1 tvgenity complete T strokes:While the; fiast, [hand Will move aro'undthe dial oncfei for eachcOmplete'strOlm It Willthus be seen thatthe f cfast i hand furnishes areadymeans for estimatingftheffrictional parts of a gallon which aredelivered by partial strokes of the a trated example of such ractionsfifths of "The is atall tiinesconnected to the actuating pinion so thatany movement ofithe'p'u'mp will result in a totalizing'of such deliveredquantity; Onthe other hand,'the

; driving system. rqr theindicatiiighandsmay betemporarilydisconnected'orbrokenso that the hands maybe restored to Zeroirrespective of-the positidn of movement ofthe pump.

" accomplishedbythesainedevice which prepares and operatestheyresettingmechanism iszalvvays'preceded byga disconnection; of the u driv'ing.trains,'and aiu'll resettingis-neces sarily accomplishedfbeforethedriving trains f maybe returned to operating engagement. If

1 i, *lhe arrangement ofa the-partspermits and r-. includes"theprovision of gears-of large dif l-itsel f; and' nemb'er's are providedin suchrelationship toone another that theresetting ameter; having alarge numberi'of teeth for establishing the driving connections; afore 4said,,;,. j g-t t in he v n of; ai ai ure 0f gears to immediatelyaccurately "mesh manner} I n :The piston rod Roflth'e pump-carries atransversebracketlE having lugs 1O thereon I airis jof sleeve 19 pump;giving a direct indl'cationm the 'lllUS- upon ret'urnto appropriatedriving engage ment; avery'small percentage of a revolution will beoccupied by initial movement of the driving train before 'the fi'nal andaccurate engagement occurs. In the illustratedcylinder C and apistonPmoved relatively to :o'n'e'i another by? any csuitable mechanism (notshown); This pump is provided with [the inlet conduit 1 land tljiedispensing conduit D connected to a .four w'ay valve V 7 example ofexecution, at V double-actingliquid dispensing pump has awhichcontrolsthedeiiveryof liquid through one of the'lvalvej conduits Bto oneend of the 7 cylinder (Land discharged from the other end of-thecylinder through the other valve conduit-LB to pipe" D'; AalLin Wellknown which support and permit the rotation of an usting; screw 11'having ahead 12 and bearing aftravelin'g nut 13 lvvhic'h in turnsupports a pivotl l for] the vrack arm 15 having teeth engaging with thedrivingor actuatingpinion 16 tithe indicating and counting device, Itobedescribed hereinafter. 'As shownlm F1g;j,3, the rack-15has a guide bar"15a fastened thereto and presenting'its sedge against a "noseil7' "oftheifsupporting bracket ofthe shaft for the pinion 16 A sleeve '19 ii onthis lattershaft} receives" a swinging plate 20 having a pfairofrollers- ;p vot'e'd thereto to engage Withthe'opposite edgeof-the'guid'e rail-15a. The washer 22 and: nut 23 cooperate "inmaintaining the swinging plate 20in position and permita free rocking.or" thiss' vinging plate about the .111 o raeo as the piston "rod B M1s:

cates, the rack 15' is translatedu'p and down therevvith, but reason ofthe offset rum tlonship' oiithe; pivot 14 With respect to'theengagementof the rank teeth with thepinion 16; the rack is caused tomake a slight rela- 4:

tiv'e' rotative' movement counterlockwise with respect to the axlsfofthe s'leeveY19, being at times held in engagement With the drivpinion16"by' the operation of the rollers 7 v '21 andthe' noselZupon theguide' raillfia. This bre'akageof the driving connection is l During thedovvnvfv'ard imovemen t' of; thejpisn ton rod R, theirack lamakes acorrespondng clockwise movement; soi'that the total ei feet, upon thepinion 116:;is nil. However,

since the': angle eithermk 15 ithrespe'ct'to E the d rectionof movementof the'piston ro d R' maybe-varied, ameansis. presentedof compensating'fon different lengths of 7 stroke of the pist'o'nfP for the delivery'of-a calibrated quantity, since when the rack 151 moves sole ly' inthedirection of its length, as when the traveling nut l3 is-adjacenti;thepiston red,

B -then the number of teeth which operateato 'ijseaeoe I whenthe'traveling nut at the end I the screw 11 away from the piston rod R,the

same movement of the piston rod R will cause a greater number of teethon the rack to move past and operate the teeth of the pinion 16 :andobviously the position of the travelingnut 13 along the screw 11 willdetermine the axis rotation thusgivento the 'drivingpinion l6.

Obviously, the opinion 16 is rotatedfirst in one direction and then inanother by equal amounts. It is therefore necessary to providea'uni-directional drive between the actuating pinion 16 and the trainsto be driven,

'in'ord'er to add up ortotalize the respective movements of thepistonPand' of the pinion I in th'eplate 18a' which supports thebracket" 16 driven therefrom. p

I As'shown in Figs. 2 and 11, the sh'aft'16a 3 of the pinion 1 6 carriesa: gear which 2e meshes with two gears 31 and 32 fastened respectivelyto shafts 31a and 32a journaled 18 above referred to, and which itselfis mounted in spaced relationship to the-back plate M of the indicatingand counting device by spacing-and securing bolts 33. Each of theseshafts 31a, 320, carries a ball or roller clutch31b, 32?) wherebytooperate a further gear34 or 35 carried by the respective other memberof the clutch. 31b, 32?). 'These clutches are designed to operate inopposite directions, i. e., when the gear 30is turned in a clockwisedirection, the gear32 meshing :therewithdrives its clutch 32b andtherewith I "the gear35, while the gear31 turns freely withoutdrivingthrough its own clutch member 3116. On the contrary, when the gear 30isturned a counterclockwise direction, the gear 32 turns freely withoutdriving through :its clutch member 32b, while the gear 31 now drivesgear 34 through. the clutch member 31?). The two gears 34, 35 meshtogether a 2) so that a movement of one of these Qul.

. corresponding gear 35, 34;and vice versa.

gears is attended by a movement of the other gear lnthe reversedirection. Such movement is permitted by the respective ball clutches31b, 32?), so that alternatelyone of the gears 31, 31b isturning withits corresponding gear 34, 35 while the other gear '32, 31 isturninginthe opposite direction to its The shafts 31a, 32a pass through therearplate M and at the opposite side of this plate *ca'rry'the respectivedrivingpinions 31d, 32d

(Figs. 5 and 11), whichintermesh. Pinion '3ld meshes with theintermediate gear 36 The pinion 32a mesheswith the gearllfl v rwhich'hasthe small diameter pinion e2fas-r 65.

"having the gear 37 fixed thereto, both gears turning together about apivot pin 38 secured to the backplate The gear 37 in turn meshes with anidler 39 fastened to the small pitch driving ,wheel401of large diameter(Figs 6, 6a).

tened thereto, which in turn meshes withithe two gears 43 and 50. Thegear 43 is an idler having a; small gear 44 fastened thereto to drive afurther idler 45 which in turn oper ates acounting device representedconventionally 'at- T, but it will be understood to provide a pluralityof disks having numerals thereon for exhibition through the viewingwindows 46', whereby an inspector can determinethe total quantity ofliquid which the front plate, and of the indicating and counting deviceThis gear 50 is connected by a sleeve 53 with a small-pitch gear 54.

Inthe front plate'N is fixedly mounted a bushing in which may freelyrotate a sleeve .61 having a plate 62 to support the slow hand 3' (Figs.4 and 11) on the outer side of the dial L (F i 11), and rigidlyconnected to the large diameter slow wheel 63 having a large number ofteeth on its periphery and likewise having fixed thereto a slowresetting gear 64. A spindle 65, rotatable within the sleeve 61, isfixedly connected to a similar large diameter wheel 66 having a large'number of teeth on its periphery, and being in turn rigidly connected tothe resetting fast gear 67: in front of the dial L, the spindle carriesthe fast hand F. p r I I It is preferred to form the large diametergears 63 and 66 of substantially the same diameter, and to provide eachof them with a respective arcuate slot 63a, 66a which respectivelyreceive the enlarged ends 68 and Q 69 of the motion-limiting stops 7 0,71 which are carried by pillars 72 fastened to the front plate N of theindicating and counting device. 'As indicated by the dotted circles 73in Fig.

6, each ofthe arms 70, 71 has an aperture larger than the screw of thecolumns 72,

whereby the angle of presentation of the respective stop members 70, 71,as well as the distance from the respective column 72 to the extreme end68, 69, may be adjusted.

The spindle 65 likewise has a hub 7 4 which 7 supports a cam 75: aswellas a stud pin 76 which is presented in the bracket 77 (Fig.

I 2) of the back plate M. The bushing 60 and thebracket 77thereforefor'm journals for the hand carrying parts at each end thereof,

so that these parts aremaintained for their rotat-ive movement. A gong 7Sis fastened in the cavity'79 of the gear plate M by'a rivet 80. A heavyclapper head 81 is carried by a resilient arm 82 supported on a-block 83mounted on a pivot pin '84 of the back plate M (Fig. 2) The. resilientarm 82 has: an offset'dog 85which rides along the periphery ofthe cam75. A coil spring 86 is connected to the arm 82 and to a pinion 88'fixedon the .1;

"r ite a e M and; assis i firmineth arm P 82 nd: t l ppetheed fild wiietd t i rtl 7 thQg ngBQ; It w l, 10W -e F g. lr at'h actio ,1 1 gW919i) 1 clapper he'adgSl -;Wi 1'1 ;n0 rmelly draw. itdown} e, fitted; i

Ward-wh nthe dog 8.5 m re eased y i e c m w '15..- Irwin-fer hepbeappent ha theam r turns by. one Q rotationg for eechrotetien f' the ffasti'hanc1 F," whieh pep;resents; in turn h Y BYJ f sine un t uan t 12 li lfd andfhence the gengwill sonndeeenratelya t the. moment thzttthe-hend Fpassesthezem 1ine,;011 in;0thep word s, thegeng will sti ik eat eelizdele yni 0. 1 al o cpot new thehan fi, mt ii n s e a e i d itioncprfresp'onding to -the isLieL'indiCatiOn of the hind: F, in making; a;revQluti"0n. It will tendingpin 91; carrying. one .endj'of a coilspring} 92 whieh engeges the pin- 931 01; the

V pocket? arm52 Eig SsQend mm thns eonstantly "tends to pull shiftingjpltite' a "cre t ve y n ieic ee i ise d g n with-pre- 'spect totheme-keg. m nt-'52 -The shifting plate" 9 0a supportsi the Pivot. 9T4:f'fa ,vi he el 95' having small-pitch teeth (in its edgeiajnd meshing@64 1 times w t the im' r W 5 pi otediebp ttheipin; Th meterrm ;52has aslot-orie l gef opening QGthenei'n whieh the feelzer arm 52, asdetermined by'thejnieve- .mnt th shift g pee 901a: Mme-9 f stened inpethe ee arm.- 2 'efe ie with the cylindrical sleeve \98 *of the wheel95,"

' end thns li nitthes movement-6f the latter jt'oward-thelargewheelfifif enqekerdrr n 52itse1'f i'sdrtiwniin' a eunr .7 .tepcleelgwme,dlreet on by fa p011 spring 99' "ee eeineieim 1 1 he f e P e" N:

is limited in it's nioveinent by fan eidjii ing anglemembeinlMiha'iringla slot'1Q5 therein 7 t0guic1e the i eclier arm 52inits moveinnte It is apparent; that-thejdintopefationpof the adjustingscrew 101-i11 respect to the rocker this Wheel 95 into engagern'e'nt thWheel 7 V Withhn excessive pressure i andte ppei entf ,the hammefingei'mutilation {of the sihall I teeth during the mo ementincid nml tofthes'hing of these parts {fell'ewing mesa;-

arm 52, an d ofjthe'stop platefi'fwith respect tov the vWheel 95; toprevent the fei'eing 'of fem,

- h rese n .e echan ms p s ely-feetuatedpnsh button .110 Whichis f0block 113 "and the fade plate N; and an 1119- I st-ending. erm1'18 whiehwipes al eng'thehi vjheentedgefof the rocking paW1119 having the heek12Q and the operating C am portion .121; 21nd WI "eh rtefelockwise.difectioni iibbut'Z its pivot, [pin is eonst'antly ,u'rgedin l8) connzei'n b16615; 11 3 b the. spring 123. The thirdarmlQOf the T-sh'apedmember116 is. connected to a spring 125 engaginga pin 126i0h theiface plateNand constantly tends t6 1151111 theT-shaped member: 116, together I withthe bushing 112, so as tQ return 'itiagainst the manual egiere ti n 6f]the *blittdn 110. i 1

3A stein '127,is:reletively slideble "in the bushing 112e'nd'has a111128 engaging ine slet v129 Of this hiishing'te; limit the relativeinevenientofthe stem 127t0the length ofthe islet 129, this slot'hein'g'closed. it the end' o f the bnshing l12 by'the T-"shiajped plate 116 efixed to the bushing 1-12. The stem 127 czt ries v handstafi @l'JhlfigTlgo which slides in apert 13 1 ofth'e 1010011113 :(Fig. 7 While a hemvely heavy c'eilf spring 132 is le'czited af b nnd the stent127 andbetween theshonl- :dei'p'f jp'lunger 130* and the T-haped plate 116; :Apin 133' holds ithe s'tem 1'27 and tinned;upw ardend downWafd'KFig. 8)so' thait itinay be'engalged hy the hook 1200f the ffdfetent ef'lltching deviee 119 on the one hand;

"and i's uided by a 81013134111' the faeeplate 5N nthe otherihand',whereby t0 preyenta'rotation of the plunger 130 about the axisof thesteni 127 'Piv ted by a pin'135t0 the end of thep'hmger'1'30 is" ac0nne'cting*1ink136 which fhas aisiet 1371 at its other endto receivethe 'pih'1'38bn the ro'ck-ei' mm: 52, so that npdn movement of theplunger 130 toward the right in Fig, '17; the link 136167111 move therocker frein' the wheel 63 (Fig. 7) and'the wheel iO Tespeeti e'dri vingtrains, and at-the same timerelnevlng anyrestra nt'against the move-Likewise fastened ihthe e plat; .N isje jji'vet 1401113011; Wh-ieh i's pivotallymennted the lei 1141- hwiingai'detent finger 142 fix'ed the etoi "'The l'evei "14:1 has an enlarged" end ute-withtweapeemies;meynitthethmugh iio iece'ive the respective co n-springs 145, 146

eenn ohejeiiettd the respetivje reset? V Itih glseginents147,}148,1itnieaeh having a f larg e reeetiqnv shoulder 1459 r agetinstfwhich "thelever;extensi0n 1412z:1nay epei'ate;

e 'ei ttie weete 1& -me tthefwheel fiti (Fig; 6(1),:1111113 freeing thewhee1s 63a-ncL66 ifi'oin 'aetuation through their 1 ed on theipivot 150fastened to the face plate N, and are each providedwithfteeth to engagewith the respective resetting gears 67, 64 ,(Figs. 6a, 7 and 12).

r In Figs. 4 and 11, it is'clearlyshown that the back plate M and theface plate N are held ri idly in spaced relationship one to another bypillars 160 having reduced ends passing through apertures in therespective platesand riveted; over to prevent accidental separation ofthese parts after assembly. The dial L'is similarly held in spacedrelationship to the faceplate N by spacing collars 161 and screws. Thisdial itself is pro-' tectedby-a gear G carried by the enclosing jacket Jwhich protects the entire mechanism. It will be understood that normallythef'back plate M is formed with anex- 7 tended, flange 162 havingapertures therethrough by whioh'the device may befastened onto thecustomary east-iron standard of I the dispensing pump.v It is likewisepreferred to provide a hopper-shaped guard163 around the push-button110, so that an acci dental contact withthe push-button 110 will notresult in a resetting operation of the device.

The *oper ation ofithe device as follows: Asthe pump rod It moves up anddown,

with a stroke adjusted bya calibrating screw '8, it delivers a unitquantity, say one gallon, for each stroke. A right-angled trivangleis ineflect .formedby a line representis equal substantially to a maximumpredetermined movement for the piston P. In other words, when the pistonP is making this maximum movement, the rack moves up and downjin astraight line" in parallelism with the movement of the rod R, but as themovement of thep'iston I is shortened by the set screw S, the pivotpoint 14 is more and more offset from thisstraight line position. Inthls way, the calibrated movement of the piston l for one 'gallonwill'cause a movement of the rack 15 in the direction of its own length,

l which is equal to the predetermined maximum, and thus cause at alltimes a unit rotary displacement of the pinion 16.

This'rotation of the pinion 16 is transmitted through the doubleclutches ascontinual movements ofthetwoipinions 31d, 32d alf'waysjfinthe same direction, each for each.

The pinion 31d operates through a gear train 36, 37, 39 to move thefinetoothed large wheel 40 and thereby the'fine toothed wheel 66 andthus to move the fast hand F: the gear train ratios are so selected forthe desired units of delivery that the fast hand F makes one full andexact revolution for each unit delivery from the pump cylinder C, whileat the same time the cam 75 makes a full revolution, and the clapper 81sounds the gong 78 at the instant thatthe fast hand F returns to Zero.

At the same time, the pinion 32d drives a gear train and operates thetotalizing mechanism T to indicate the total number of units dispensedthrough the pump: and further this pinion 32d operates a further gearwhich in turn drives through finetoothed gears 54 and 95 ,the other finetoothed wheel 63, and thus moves the slow hand 8.. It is preferred toform the gear ratios-of this drive train such that the slow hand makesone revolution for a dispensed quantity well above the usual maximum ofdelivery to a single customer, for example twenty gallons: since in thisway the customer receives a direct indication of thetotal number ofgallons which have been delivered to him. i It will be understood thatduring the time that the slow hand has moved from a zero position to aposition of eighteen gallons, for instance, the fast hand has madeeighteen completelrevolutions and the gong 78 has been sounded eighteentimes. V

During this movement of the hands, the gears 64 and 67 have been rotatedtherewith, and have operated upon the resetting segments 148, 147 tomove two sectors in a clockwise direction in Figs.6 and 6a to theposition shown in Fig. 6. During this movement,the resetting springs 145are slightly tensed so that the detent 142will ultimately engage thesesegments and hold theinf'in the position "shown in Fig. 6. Theengagingsurfaces 'ofthe detent 142 and of the'segments 147,148 may beconstructed. to occasion a withdrawal of the segments from anyengagement with their'respective gears 64, 67.

. After completing'adesired delivery to a customer, and it is desired toreset the hands and associated mechanisms to zero so that a dispensingoperation may be begun fora new customer, the thumb button 110 isdepressed.

As'a result of this single operation, the gear trains driving the fastand slow hands are disconnected and these hands arereturne d immediatelyand positively to a zero position, one independently of the other, andthe parts are so disposed that this return is so produced that nopartial operation of the button 110. will causela partial return ofeither or both of the hands to a partially restored position. The way inwhich this is effected is as follows: 4 7

Normally, the returning sector 147 for the fast hand is held free of thegear 67 of this hand by the detent 142: and both the turning sectors147, 148 are without spring tension from'theirsprings 145,146. The finetoothed wheel 40 is in mesh with the fine toothed wheel 66, and the finetoothed gear 95 is in mesh withthe fine toothed wheel 63.

' f theiind icatingparts.

insane time not dpi sseej he tna 1'18 compresses the spring 132, but forthe moment the plunger=130 is held immovable by'fthefengagement of thepin133'bey-ondthe hoolr 120. At'thefsame' time, the' plate 1'18 causes arocking'ofthe lever system 141, "142';

141 a and tliusrelea'ses the sector platesjl'f,

I48 and brings tension 7 upon the {returning springs 145', I46. Alloiflthi's has Occurred .without any movement otthefplunger l',"

132', fl tvvill be noted that Ipreferably the t'woilargetoothedf Wheels6:3. and 6'6 have'fbeen heldagain'st re'turnbythe action of theirrespectivedriving trains and the "ball" clutch amembers-f3ib,,1,325.,'The movement of the "plunger l30,-,however, causesa relative endwise movement of the link;13, 6, at firsttreelywith'respect to the 138,, and" then asud' and abrupt clockwise 'movementof the i'ockiarm bz about its pivot 51, thus disengagingthefinetoothedllargeWheel 40 from its meshing wheel 66.;and of thefine. toothed gearf95 from itsrmeshing wheel' fig 'Theosec: tors 147'and-1&8 rare novvfree to drive the respective gears 61 andMandlthus-torestore vtheLlazrge;toothed wheel 63,."66, toge her with the handsI-fand S and; the cam tothe 'zeroupositi-on: the respective gears; ape,nroaclr th-is'=pos1t1on, the stop sprmgyarms .70, bring their detentends 69 intothe S. to a stand-still exactly at.:the zero position.

It noted that thisfhas occurred al- A-m/ostinstantaneously: and soquickly that the operator doesnot have time ;to relieve his fingerfi'oin the; button 110 betore the reset- 3 tinglh as-occurredg. 1

Attereresetting, when the button l l O is re- ;leased;c-the plate ll8travels backagain by the action of the spring j-125:, and theiresid-naltension; the springs 145., 146, causes the lever -systen1.- 1&1, 142141a to return with thez'plateill-8, The 128 is likewise .en-

' gauged bythe plate 118 and. the plunger 130 and/itslink l36 arepulled; back permitting theretu rnof the rock arm 52 byithe action ofitsi'spring; 9 91, until the rockarin 52 comes 7 -agai-nstitheAstop 101and the-:dri-ving-gears are again in mesh. I

V Itwvi'll: be notedv that toothed. large wheels 40, 66' enterpositivelyinto mesh at not' greater 1/260th of a revolution, as

snnaing-that each gear has 260 teeth: this representing an error of lessthan l-v/th-of onenpercenrt for the-indication given by the Eliand.v'Likevvisefa similar: distance .is the maximum of error: for 'thetslowhand, J

by LettersPatent-is: V V a v'1. In a cleviceof the class describedia momI linear movement.

since the 95 is spring-pressedby spring SQintoengagement vvith'thelargewheel 68; V i If the tops btthe t'eeth in the largewheel V 63 and thefine toothedgear 95 should chance to come opposite each other infreturning 'to-' Vw'ardnie'shing, this'iis forthe momentiabe sorbe'dbyl'the spring f92'zbutupo1'1 a slight movement of the driving; gear 5iand-hence Oithigeal t Pa t movequick1 'ma meshing relatio hip 1 1 The t0 s l tsjni fdisaneefbe- 't'vveen the axi's'oii' the 'largewheel's50andi66 :so that they mesh 'e'xactly: hile the plate providesfor asimilar maintenance ofthe meshing relationship of'the gear 95'With1-theWheel'63, V o V.

It W111; be noted that cl'uring the entire resettingoperation,thevarious geartrains up to and including the l'arge'vvheel 40 and thetoothedgear 95 are continuously conthough such quantities may not be'indi- V oated bythe hands Sand'l andv the gong 778V:

injother vv0rds,an operator cannot defraud theovvner of the pnmp bydispensing liquid with the button 110 continuouslypushed in.

" hat I claim as new anddesire; to secure ber adapted to be f attachedto any one of .a

nected to the driving system from the pint ion 16.:1andthat thetotalizing device'Tfconv tlnues to add. up quantities dispensed even:

numberrof pnmns having difi'ering-lengths of a stroke for the deliveryof a calibrated-j quantity-sothat the member is moved linearly inproportion; to the movement'ofthe pump, a pinion, a rack meshing withsaid pinion,

meansl'connecting said member and said rack sothat the rack is movedwith said member te-rotate said pin'ion and; means to -adjust [saidrackangula-rlywith ii espect to said 2;- In a device of piston'stroke forthedelivery of a. calibrated quantity so that the track is moved linearlyin proportion to the movement of the pump piston, apinion meshing withsaid 1 rack, means for con-necting said rack to aselecte'd one'of'saidwpumps -so that the rackis moved to rotatesaid pinion, and meansto adjust said! rack angularly with respect to said linearmoveinent. I o1 8; device of'the class described for employment with any one of :anumber of I theclass described;arac k acla ptedito be'attachecltoany oneof anum- .1 her oi pumps having differing lengths off pumps havingdiifering lengths of, piston stroke "for the delivery of a calibrated"quantity and eachhaving a member reciprocated in proportion to thepiston movemenh the combination of a bracket connected to said;

memberand extending transversely of the direction of movement of saidmember, a :pivot {mounted on: said-bracket, a rack connected tosaiolpivot, a;rpini o-n,-, and :asvvinging rock arm pivoted coaxially withsaid pinion, said I armhaving guide members for the movement of saidrack whereby to maintain said rack inmesh with said pinion. 4:, A deviceas in claim 3 including means for'movingsaid pivot to and securing it at3 difi'erent points of saidbracket.

. 5; A device of the class described for employment with any one of anumber of pumps I i having difi'ering lengths of piston stroke for thedelivery of a calibrated quantity, including a bracket connected to andreciprocated by the pump piston so that its linear movec ment isproportional to the piston movement, a rack. a pivot connection on saidrack, a pinion meshing with said rack; means for securing said pivotconnection to said member at varying distances from a line passingthrough the pinion axis and parallel to the line of said linearmovement, and a swinging rock arm pivoted coaxially with said pinion,said arm havingguide members for the V movement of said rack whereby tomaintain said rack in mesh with said pinion while moving withfsaidmember and turning about the axis of said pivot connection regardless sof the position of said pivot connection on i said member. I

6. In a device offtheclass described for employment with any one of anumber of pumps having differing lengths of piston stroke for thedelivery of a calibrated quantity and eachhaving a member reciprocatedin *proportionto the piston movement, the 5 combination of a bracketrigidly secured to said member and extending transversely of thedirection of movement of said member, a pivot,cmeans for supporting saidpivot'on said bracket at any one of a number of points 4001 said bracketat differing distances from said member, a rack connected to said pivot,

a pinion, and a swinging rock arm pivoted coaxially with said pinion,said arm having guide members for the movement of said rack whereby tomaintain said rack in mesh with said pinion.

In testimony whereof, I afiix my signature.

' JAMES M. DAYTON.

